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My 12-year-old senior cat ate one small cube of cheddar cheese — is that an okay amount for her?

Cats · Food safety

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

One small cube is likely fine for most senior cats, but watch her closely. Older cats often have more sensitive digestive systems, and many are lactose-intolerant, which can lead to diarrhoea or gas. Cheese is also high in fat and salt, which aren't ideal for aging kidneys. If she shows no signs of upset within the next day, it was probably a harmless treat. However, if you notice soft stool, vomiting, or reduced appetite, avoid cheese in the future and mention it to your vet at her next check-up.

Cheese — Food safety facts

Feed with care · Cats · full breakdown on the linked food page

Most pets are lactose-intolerant to some degree. Tiny pieces are fine as treats; avoid if your pet gets diarrhoea.

Dogs and cats carry the same rating (Feed with care), so the notes below hold for either pet.

Cheese is not poisonous to cats, but it is easy to over-feed. Rich fat, salt or seasoning can bring on vomiting or diarrhoea within a day, and repeated large portions are a recognised trigger for pancreatitis.

If it ate some before you noticed, watch for vomiting, diarrhoea, loss of appetite, unusual tiredness or a painful, swollen abdomen over the next 24 hours. A one-off small amount in a healthy adult usually passes with water and rest; repeated exposure, a puppy or kitten, a senior, or a pet with an ongoing illness is a reason to call your vet the same day.

Why these cautions matter

Added sugar brings empty calories, and over months that means weight gain and dental disease — both far harder to undo than to avoid.

Most adult pets make very little lactase, so dairy tends to produce gas, bloating and diarrhoea instead of usable nutrition.

Cheese can turn up now and then, but not as a daily habit: keep the rest of the day's food unchanged and watch the litter box and how quickly they finish the next meal.

The full verdict, portion guidance and serving notes are collected on the Cheese food facts page.

Open the full food page: Cheese food facts →